LOANS (covered) - Additional Information (Details) (USD $)	9 Months Ended					3 Months Ended		9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Sep. 30, 2014 Loans Accounted for Under FASB ASC Topic 310-30	Dec. 31, 2013 Loans Accounted for Under FASB ASC Topic 310-30	Sep. 30, 2014 Covered Loans	Sep. 30, 2013 Covered Loans	Sep. 30, 2014 Covered Loans	Sep. 30, 2013 Covered Loans	Sep. 30, 2014 Covered Loans Loans Accounted for Under FASB ASC Topic 310-30	Dec. 31, 2013 Covered Loans Loans Accounted for Under FASB ASC Topic 310-30
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, Federal Deposit Insurance Corporation Reimbursement Percentage on Losses Below Threshold								80.00%
Loans, Federal Deposit Insurance Corporation Reimbursement Percentage on Losses Above Threshold								95.00%
Loans-FDIC Coverage Lost	$ 190,300,000
Loans-FDIC Coverage Lost percentage	57.30%
Covered loans	332,265,000	457,873,000	518,524,000	279,285,000	399,655,000
Outstanding balance including contractual principal, interest, fees, and penalties										337,500,000	493,600,000
Reclassification from/(to) non-accretable difference						$ (2,295,000)	$ (4,979,000)	$ 19,864,000	$ (5,687,000)